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I'm interested to know if there are many others who would be interested in a Multisim viewer. I'm hoping engineering see's this and it pricks their design creativity. In my business, it would be very handy to have a low-cost viewer that our techs could use as they trouble-shoot the board. It's not cost effective for us to buy complete licenses for techs that will only view, but not change the schematic. Right now we print out the schematics, but not every value is available (it would be too crowded on the schematic) and the comments are hidden. Plus you can't zoom in on printed paper. The competition (read Mentor Graphics) have free viewers available.

Some other suggestions:

- The ability to have the values of a part pop up when the mouse is hovered over it. (Should be able to be switched off).

- The ability to group parts so that they can be oriented as a group. (Similar to how it is available in the component wizard).

I have a circuit that simulates very slowly and when I look at the Windows 7 performance of my I7 computer it is using only 2 to 4% of the processor power. In reality it is only using one thread at 50 to 60%. I understand Multisim was written back before multicores were available but I request that this be one of your priority improvements.

To show how slow it is running after letting it run over night it has run less than 1 second of simulated time.

I have searched the web and found many people frustrated with the Multisim's slow simulation speed and the fact that the processers are 90% idle.

Give a slider control for those that want to slow down the simulation for whatever reason.

One of my biggest irritants is waiting to see if my circuit change fixed an issue and knowing the software is not even stressing the computer. Years ago I was using Pspice with a single core processor and when you click simulate it used about 95 to 98% of the processors time until it finished the simulation. Now I have unused power and still have to wait.

I hope someone at NI will read this and make multithreading a priority requirement for Multisim.

Please add your comments, the more people that comment the more I believe NI will listen.

In instance where goal is to move a part a specific number of grid steps, it is useful to

select part by mouse click Left arrow

hold mouse button down

press arrow key to move in direction of arrow

Ultiboard appears with Win 10 to require several pressings before the part moves one grid. Seems that the queue for the keyboard is not flushed when left mouse button is depressed to choose part. Or interupt does not response to first buttom push.

After part moves, Ultiboard accepts the next keyboard button press. Hence, if moved say right to a location and then desire to move up. Simply press the up arrow and instantly happens.

Simple request - user interface issues of this sort make Ultiboard look like an unpolished program. Bet fix does not take many lines of code, why not make Ultiboard super intuitive, and then a state of the art tool.

2. Schematic text able to use subscripts. Perhaps a special character could be used to signal this (like in TeX). For example R_f means "R" with subscripted "f". Currently, I do this with two different text boxes using different font sizes and manually align them. Very inefficient.

There are much more footprints of connectors available in Ultiboard than in Multisim. To create a correct circuit diagramm I need the same foortprints in Multisim. There are not enough connectors in Multisim.

Unfortunately there seems no way to upload an existing circuit design to multisim live. The only file extension accepted is .msjs. Trying to upload any .ms14 design is simply ignored (not even an error or warning is displayed)!

10. Simulation: To add additional drift tolerance (aging, humidity etc.) option for a components (resistors and capacitors). Please create an option to turn ON and turn OFF additional drifts globally for a whole circuit design and for specific component.

11. Simulation: To add component stress analysis but more advanced. The goal is to check maximum dissipated power according to derating power characteristics for resistors according to current operating temperature (TEMP parameter for circuit simulation) and maximum voltage for a components (resistors, capacitors).

The goal of these changes is to focus your product more in professional market where engineers must to find voltage/current limits according to operating temperature limits and component tolerance variation. Your product is good but it might be more oriented to perform these tasks much faster.

the idea is that the colors of nets in Multisim will be automatically set for different nets. For example the ground net will automatically be black, the power supply (plus) red and so on... Maybe there is a way to save the user's preference in a config-file?

In Ultiboard it is possible to export a 3D IGES, but it is not possible to import these 3D IGES files in to Solid Edge or Solid Works. It would be a big improvement of Ultiboard if this was possible in the next update.

Multisim is a very powerful tool and suitable for educational purposes in first courses of Engineering careers. Howevers lacks of a very simple and useful flexibility that other simulators like PSPICE or QUCS have. Is not possible to modify the variable presented in the x-axis of the Graph View!

If you perform a DC Sweep, AC Sweep or Parameter Sweep analysis is very easy to change the variable presented in the y-axis. However, there is not a way to modify the magnitude used for the x-axis. Thus, for example to plot the IV curve of a diode is not straightforward. In a circuit with a battery, resistor and a diode in series the user typically perform a DC sweep of the battery bias and plot the current vs the battery bias. However, is not possible to change the variable plotted in the x-axis to the voltage drop in the diode to visualize the IV (and threshold) of the diode.

Of course one can extract the results to an EXCEL sheet or use the IV analyzer instruments but this is not useful for educational purposes where you want to show the students similarities with the experiment performed in the breadboard of the laboratory.

In more advanced simulations sometimes the user also is interested to visualize some magnitude of the circuit vs different kind of magnitudes (voltaje, current, ...).

Therefore is required to have the possibility to allow the user to modify the variable of the x-axis for more flexibility of the simulations.

Instead of identifying errors by double clicking on the Yellow X of entry in DRC Tab of spread sheet, double click on the error circle marker in the workspace to automatically point to the error in the list under the DRC Tab.

Sounds simple, should be easy to add feature.

This way all errors associated with a section of the layout can be systematically fixed.

John E Kimura, Ph.D.Cantab

Sensorium,Inc.

President and CEO

MK Design, Inc.

As Einstein put it, “Thesignificant problems we face cannot be solved at the same level of thinking we were at when we created them.”

"We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology." - Carl Sagan

It would let me see at a glance whether certain pins are actually connected to the nets they should be connected to

2) Add the ability to click on an error circle on the board and have Ultiboard highlight the error in the spreadsheet. It works the other way around (click on the error in the spreadsheet view and you jump to the error on the board. But it would be nice to go in the other direction. I had problems with vias hitting incorrect traces and the spreadsheet details exactly which traces are connected, but I wanted to work on a specific problem on the board and didn't know which spreadsheet error this corresponded to. This happened a lot.

3) Change the highlight color in the spreadsheet. For some reason on my computer, I can barely see when a row is highlighted in the spreadsheet. This is the same for Multisim and Ultiboard. The background in my spreadsheet tab is white, and the highlight color is a very light gray. If I look at the monitor at an angle so that the light hits it just right, I could see which component was highlighted. But my neck started to hurt after awhile.

4) Have a button to turn on/off all layers at the same time. I had an 8 layer board, and I alternated between just looking at the layer I was routing on to looking at all layers to figure out where to drop a via. Double-clicking on each layer got very tedious.